Base64 Encode

Convert plain text into standard or URL-safe Base64 strings. Full UTF-8 support for emojis and international scripts, configurable line wrap, and complete privacy.

Private • In-browser processing • Zero server uploads

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How to Use Base64 Encode

1
Enter Plain Text
Type or paste the raw text you want to encode.
2
Configure Options
Toggle URL-Safe mode or choose an optional line wrap length.
3
Copy Base64
Grab the encoded string output with a single click.

Key Features

Full UTF-8 Compatibility
Flawlessly encodes emojis, accents, and non-Latin scripts.
URL-Safe Mode
Uses '-' and '_' characters without padding for query parameters.
MIME Line Wrapping
Split long strings at 64 or 76 characters per line.
100% In-Browser
Encryption and encoding happen purely inside your local browser sandbox.

Common Use Cases

  • Embedding binary text strings or SVG data into HTML and CSS files.
  • Encoding JSON Web Tokens (JWT) or URL query parameters safely.
  • Creating Authorization headers for HTTP Basic authentication.
  • Protecting raw strings during transmission across legacy email or network protocols.

Frequently Asked Questions

Standard Base64 contains '+' and '/' which have special meaning in URLs. URL-safe Base64 replaces them with '-' and '_' and removes '=' padding.

Yes! The tool uses native UTF-8 byte encoding before Base64 conversion, preventing corrupt character errors.

Never. All encoding executes strictly within your web browser.

Base64 Decode
Decode Base64 strings back to text or binary, with UTF-8 and URL-safe support.
UTF8 to Hexadecimal
Convert UTF-8 encoded text to its hexadecimal byte representation.
Image to Base64
Convert any image to a Base64 data URL for embedding in HTML or CSS.
Hex to Text
Convert hexadecimal strings to readable ASCII or UTF-8 text.
Validate UTF8
Check if a sequence of bytes or text is valid UTF-8 and report any errors.